package day07;

import java.util.Random;
import java.util.Scanner;

public class VerificationCode {
    public static void main(String[] args) {
        Scanner scan=new Scanner(System.in);
        int a=(int)(Math.random()*10000+1);
        System.out.println(a);
        String code=generateVeriCode(40);
        System.out.println("验证码："+code);


        /* int a=(int)(Math.random()*10000+1);
        System.out.println(a);
        String code=generateVeriCode(40);
        System.out.println("验证码："+code);*/

        /* int a=(int)(Math.random()*10000+1);
        System.out.println(a);
        String code=generateVeriCode(40);
        System.out.println("验证码："+code);*/



    }
    public static String generateVeriCode(int len){
        String code="";
        char[] chs={'a','b','c','d','e','f','g','h','i','j','k',
                     'l','m','n','o','p','q','r','s','u','v', 'w',
                     'x','y','z',
                     'A','B','C','D','E','F','G','H','I','J','K',
                     'L','M','N','O','P','Q','R','S','U','V','W'
                    ,'X','Y','Z',
                     '0','1','2','3','4','5','6','7','8','9',
                     '达','内'};
        Random rand=new Random();
        for(int i=1;i<=len;i++){
            //int index =(int) (Math.random()*chs.length);
            int index =rand.nextInt(chs.length);

            code +=chs[index];
        }
        return code;
    }
    /*public static String generateVeriCode(int len){
        String code="";
        char[] chs={'a','b','c','d','e','f','g','h','i','j','k',
                'l','m','n','o','p','q','r','s','u','v', 'w',
                'x','y','z',
                'A','B','C','D','E','F','G','H','I','J','K',
                'L','M','N','O','P','Q','R','S','U','V','W'
                ,'X','Y','Z',
                '0','1','2','3','4','5','6','7','8','9',
                '达','内'};
        Random rand=new Random();
        for(int i=1;i<=len;i++){
            //int index =(int) (Math.random()*chs.length);
            int index =rand.nextInt(chs.length);

            code +=chs[index];
        }
        return code;
    }*/
  /*  public static String generateVeriCode(int len){
        String code="";
        char[] chs={'a','b','c','d','e','f','g','h','i','j','k',
                'l','m','n','o','p','q','r','s','u','v', 'w',
                'x','y','z',
                'A','B','C','D','E','F','G','H','I','J','K',
                'L','M','N','O','P','Q','R','S','U','V','W'
                ,'X','Y','Z',
                '0','1','2','3','4','5','6','7','8','9',
                '达','内'};
        Random rand=new Random();
        for(int i=1;i<=len;i++){
            //int index =(int) (Math.random()*chs.length);
            int index =rand.nextInt(chs.length);

            code +=chs[index];
        }
        return code;
    }*/
}
//Are  you want kill me?